Dublin Institute for Advanced Studies contact@dias.ie 00353 (0) 16140100

James Drummond (University of Southampton)

Title: Tropical Geometry, Cluster Algebras and Scattering Amplitudes Abstract: Recently there are hints that there should be an underlying geometricalframework for describing scattering amplitudes in N=4 super Yang-Millstheory. Cluster algebras encode many interesting physical statements aboutthe nature of singularities of these amplitudes and their relation to eachother. We find the notion of tropical geometry allows one to obtain finitesets of singularities even when the cluster algebras become infinite andmoreover leads to a natural definition of algebraic singularities of exactlythe type seen in recent explicit calculations.

Steve Simon (University of Oxford)

Title: Thermal Conductance of the nu=5/2 Fractional Quantum Hall State Abstract: Recent tour-de-force experiments (Banerjee, Heiblum, et al,Nature 2018) have measured the thermal conductance of the nu=5/2 edge ina GaAs electron gas and found it to be quantized as approximately K=5/2(in appropriate dimensionless units). This result is unexpected, asprior numerical work predicts that the nu=5/2 state should be theAnti-Pfaffian phase of matter, which would give K=3/2, or the possiblythe Moore-Read Pfaffian which would give K=7/2. I will discuss andevaluate several possible explanations of the experimental result. Talk – Video

Sergei Gukov (Caltech)

Title: From Ramanujan to Rokhlin, via Quantum States Abstract: The goal of the talk, intended for a broader audience, will be tointroduce a class of functions that originate from physics, answer aquestion in topology, can be computed via methods more common in the theoryof dynamical systems, and in the end turn out to enjoy beautiful modularproperties of the type first observed by Ramanujan. Talk – Video

Sergei Gukov (Caltech)

Title: From Ramanujan to Rokhlin, via Quantum States Abstract: The goal of the talk, intended for a broader audience, will be tointroduce a class of functions that originate from physics, answer aquestion in topology, can be computed via methods more common in the theoryof dynamical systems, and in the end turn out to enjoy beautiful modularproperties of the type first observed by Ramanujan.

Ruth Gregory (University of Durham)

Title: Accelerating Black Hole Chemistry Abstract: One of the more curious exact solutions of Einstein gravity is the“C-metric”, a metric representing an accelerating black hole, the forcebeing provided by a cosmic string emerging from the black hole horizon. Theblack hole is neither isolated, nor static, unless we embed it in AdS anddrop the acceleration below the AdS scale – a so called “slowly acceleratingblack hole”. I will describe how to derive thermodynamics for thenon-isolated black hole, including the cosmic string tension as athermodynamical variable — as a result, a new chemical potential isintroduced, the thermodynamic length. I will also discuss a set of extensivevariables, or chemical expressions for the black hole that do not involveany reference to the geometrical parameters and describe some criticalphenomena for the black hole. Talk – Slides Talk – Video

DIAS statement in relation to Professor Hans-Benjamin Braun

Professor Hans-Benjamin Braun is not now – nor has he ever been – an employee of DIAS. He has no contractual association with the Institute. Professor Braun is a former member of the Board of the School of… Read More

DIAS Team Takes First Place in IBM’s Quantum Computer Hackathon

Starting on 18th August, teams from across Ireland went head-to-head in the IBM Qiskit Quantum Summer Jam Hackathon. The competition was open to the public, so naturally the 13 teams covered a diverse array of backgrounds, from universities… Read More

Ph.D Scholarship in Ocean Seismoacoustics

The Dublin Institute for Advanced Studies (DIAS) invites applicants for a PhD scholarship in low frequency Ocean Seismoacoustics. The position is funded by DIAS and the successful candidate will be expected to undertake four years of PhD research… Read More

Marianne Leitner (Dublin Institute for Advanced Studies)

Title: Integrability, Rationality & Convolutions Abstract: The Eisenstein-Kronecker function is a useful object in number theory and physics. It is a tool for proving rationality for period integrals of cusp forms. It generates integration kernels of elliptic polylogarithms… Read More

Dan Browne (University College London)

Title: Universal Fault Tolerant Quantum Computing with 3D Surface Codes Abstract: Quantum computing hardware is making impressive advances but the construction of a large scale fault tolerant quantum computer remains a significant challenge. Part of this difficulty is… Read More